Type of mesh gratings

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General details about grating types SP, N & NP:
Elefant® gratings consist of vertical standing flat bars. The tallest bars are in the span direction and are called bearing bars. The transverse bars are called control and filler bars, and the control bars are used to keep the gratings square during the pressure welding.

Together, the bars form a pattern of many square sections, called
" meshes".

 

The distance between the filler bars is called MC and is written first .
The distance between the bearing bars is called MA and is written as the last dimension when defining the mesh size, ex.:

MC x MA = 20x30 mm

The gratings are usually finished with edge bar that can be made to suit your requirements.

ElefantRiste A/S manufactures gratings based on the four basic types:

SP, NP, N & Louvre Gratings.

Type SP is the most common type on which the vast majority of our standard products are based, whilst types NP, N & Louvre Gratings are primarily used in connection with custom-made gratings - often for purposes where requirements are made of design and aesthetic appearance.

The 4 types will be descriped on the following pages.

Manufacturing options for SP, N & NP:

Dimension:	May be manufactured in dimensions up to 1230x3300 mm subject to weight and specification. Larger panels can be accommodated upon agreement.
Edge bar:	Flat bar plate, box section or angle section – as required.
Mesh sizes:	Minimum: 9x9 mm Maximum: 200x200 mm Both subject to specification of bar and grating size.
Bearing bars:	From 20x2 to 70x3,5 mm Other sizes are available upon special request.
Serrating:	May be manufactured with serrated bars, in one or both directions. See the section on serrating.
Fixing:	Types SP, N & NP may be delivered with: Bolt holes in edge bar Welded fixing plates or standard fixing clip assemblies may be used.